CN218569302U

CN218569302U - Optical module connector

Info

Publication number: CN218569302U
Application number: CN202222700002.4U
Authority: CN
Inventors: 王�华; 张晓明; 史广星
Original assignee: KUNSHAN 3E ELECTRONICS CO Ltd
Current assignee: KUNSHAN 3E ELECTRONICS CO Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-03
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses an optical module connector, which comprises a terminal module, wherein the terminal module comprises a lower row terminal and an upper row terminal, the lower row terminal comprises a first contact part, and a first plastic piece is injected on the first contact part; the upper row of terminals comprise second contact parts, the first plastic part comprises a positioning structure, and the second contact parts are assembled on the first plastic part through the positioning structure; and the first contact part and the second contact part respectively comprise a contact section exposed out of the second plastic part. According to the optical module connector, the lower row of terminals are firstly subjected to injection molding, and then the upper row of terminals are combined for secondary injection molding, so that the problems of multiple production steps and high cost existing in the three-time injection molding of the terminals of the conventional connector are solved; meanwhile, the positioning structure is arranged on the first plastic part to position the upper row of terminals, so that the problems of difficulty in positioning and complex structure existing in one-time injection molding of the conventional connector terminal are solved.

Description

Optical module connector

Technical Field

The present invention relates to a connector, and more particularly, to an optical module connector.

Background

A connector is a device used to connect two active devices, carrying current or signals. The connector mainly comprises a plastic shell and a connector terminal.

In the prior art, in the industry, the connector is generally subjected to three-time injection molding, namely, the upper and lower rows of terminals of the connector are subjected to separate injection molding respectively and then combined together to be subjected to three-time injection molding, and the injection molding mode has multiple production steps and higher cost.

In order to reduce production steps, the connector is also subjected to one-time injection molding, namely, the upper row of terminals and the lower row of terminals of the connector are subjected to one-time injection molding, the injection molding mode often has the problems of difficult terminal positioning, complex structure of a mold sliding block, large mold size, high cost and the like, and meanwhile, the terminal PITCH (PITCH) is increased, so that the material cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical module connector, it is used for solving current connector terminal and adopts the production step that the cubic was moulded plastics and is existed many, with high costs and adopt once to mould plastics technical problem such as location difficulty, structure complicacy that exist.

In order to achieve the above object, the present invention provides an optical module connector, which includes a terminal module, wherein the terminal module includes a lower row of terminals and an upper row of terminals, the lower row of terminals includes a first contact portion, and a first plastic part is injected on the first contact portion; the upper row of terminals comprises a second contact part, the first plastic part comprises a positioning structure for positioning the second contact part, and the second contact part is assembled on the first plastic part through the positioning structure; and the first contact part and the second contact part respectively comprise a contact section exposed out of the second plastic part.

In one or more embodiments, the positioning structure includes a limiting groove matched with the second contact portion, and when the second contact portion is assembled to the first plastic part, the second contact portion is limited in the limiting groove.

In one or more embodiments, the positioning structure further includes a stopping protrusion, the stopping protrusion is disposed at a terminal of the limiting groove, and when the second contact portion is limited in the limiting groove, the terminal of the second contact portion abuts against the stopping protrusion.

In one or more embodiments, the height of the stop projection is greater than or equal to the depth of the stop groove.

In one or more embodiments, the positioning structure further includes at least one pair of limiting protrusions symmetrically disposed on two sidewalls of the first plastic part, and when the second contact portion is assembled to the first plastic part, the second contact portion is limited between the at least one pair of limiting protrusions.

In one or more embodiments, the spacing between the at least one pair of stop protrusions is greater than the width of the second contact portion.

In one or more embodiments, the first contact portion and the second contact portion are disposed opposite to two opposite sides of the first plastic part, and perpendicular projections of the first contact portion and the second contact portion on the first plastic part are at least partially overlapped.

In one or more embodiments, the lower row of terminals further includes a first fixing portion and a first yielding portion connected between the first fixing portion and the first contact portion, the upper row of terminals further includes a second fixing portion and a second yielding portion connected between the second fixing portion and the second contact portion, when the second contact portion is assembled to the first plastic component, the first fixing portion and the second fixing portion are misaligned with each other, and the first yielding portion and the second yielding portion are misaligned with each other.

In one or more embodiments, the terminal further includes a first pad and a second pad disposed corresponding to the first pad, the first fixing portion of the lower row of terminals is fixed to the first pad, and the second fixing portion of the upper row of terminals is fixed to the second pad.

In one or more embodiments, the first contact portion further includes an injection molding section integrally formed with the contact section, the first plastic piece is injection molded on the injection molding section, and the contact section is exposed from the first plastic piece.

Compared with the prior art, according to the optical module connector of the utility model, the lower row of terminals is firstly molded by injection, and then the secondary injection is carried out after the upper row of terminals is combined, thus solving the problems of more production steps and high cost existing in the three times of injection molding of the prior connector terminals; meanwhile, through improving the structure of the first plastic part, the positioning structure is arranged on the first plastic part and used for positioning the upper row of terminals, and the problems of difficult positioning and complex structure existing in one-time injection molding of the conventional connector terminals are solved.

Drawings

Fig. 1 is a schematic view of an overall structure of a terminal module of an optical module connector according to an embodiment of the present invention.

Fig. 2 is a schematic view of a structure of an upper row of terminals combined in an optical module connector according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the optical module connector according to an embodiment of the present invention after the lower row of terminals is injection molded once.

Fig. 4 is a schematic diagram of an overall structure of an optical module connector according to an embodiment of the present invention.

Description of the main reference numerals:

10-lower-row terminals, 11-first contact parts, 12-first fixing parts, 13-first displacement parts, 20-upper-row terminals, 21-second contact parts, 22-second fixing parts, 23-second displacement parts, 30-first plastic parts, 31-positioning structures, 311-limiting grooves, 312-stopping bulges, 313-limiting bulges, 40-second plastic parts, 50-first bonding pads and 60-second bonding pads.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Referring to fig. 1 and 2, according to an embodiment of the present invention, an optical module connector includes a terminal module, the terminal module includes a lower row terminal 10 and an upper row terminal 20, the lower row terminal 10 includes a first contact portion 11, and a first plastic member 30 is molded on the first contact portion 11. The upper row terminal 20 includes a second contact portion 21, the first plastic part 30 includes a positioning structure 31 for positioning the second contact portion 21, the second contact portion 21 is assembled on the first plastic part 30 through the positioning structure 31, and a second plastic part 40 is injection-molded on a combination of the first contact portion 11, the second contact portion 21 and the first plastic part 30.

Therefore, the problems of multiple production steps and high cost of the conventional connector terminal in three-time injection are solved by firstly injecting the lower row of terminals 10 and then combining the upper row of terminals 20 and then performing secondary injection; meanwhile, by improving the structure of the first plastic part 30 and arranging the positioning structure 31 on the first plastic part 30 for positioning the upper row of terminals 20, the problems of difficult positioning, complex structure and the like existing in one-time injection molding of the conventional connector terminal are solved.

Referring to fig. 3, in an embodiment, the positioning structure 31 includes a limiting groove 311 matched with the second contact portion 21, the limiting groove 311 may be formed on the upper surface of the first plastic part 30, and an extending direction of the limiting groove 311 is the same as an extending direction of the second contact portion 21. When the second contact portion 21 is assembled to the first plastic part 30, the second contact portion 21 is limited in the limiting groove 311, so that the second contact portion 21 is positioned.

In this embodiment, the positioning structure 31 further includes a stopping protrusion 312, the stopping protrusion 312 is disposed at a terminal of the limiting groove 311, and specifically, the limiting groove 311 extends along a plane perpendicular to the stopping protrusion 312, so that the stopping protrusion 312 blocks the terminal of the limiting groove 311. When the second contact portion 21 of the upper row of terminals 20 is limited in the limiting groove 311, the end surface of the second contact portion 21 abuts against the stop protrusion 312, so as to further position the second contact portion 21.

Further, the height of the stopping protrusion 312 is greater than or equal to the depth of the limiting groove 311, so as to better position the second contact portion 21.

In one embodiment, the positioning structure 31 further includes at least one pair of limiting protrusions 313, the pair of limiting protrusions 313 are symmetrically disposed on two sidewalls of the first plastic component 30, and a distance between the at least one pair of limiting protrusions 313 is greater than a width of the second contact portion 21. When the second contact portion 21 is assembled to the first plastic part 30, the second contact portion 21 is limited between the at least one pair of limiting protrusions 313, so that the second contact portion 21 is further positioned.

Like this, through set up location structure such as spacing groove 311, backstop arch 312 and spacing arch 313 respectively on first plastic part 30 to with second contact site 21 stable assembly on the combination of first contact site 11 with first plastic part 30, and then be convenient for carry out the secondary to the combination of first contact site 11, second contact site 21 and first plastic part 30 and mould plastics, improve the terminal quality of moulding plastics and production efficiency, and the cost is reduced, effectively prevent upper and lower row terminal short circuit simultaneously.

Referring to fig. 2, the first contact portion 11 and the second contact portion 21 are disposed opposite to each other on two opposite sides of the first plastic member 30, and vertical projections of the first contact portion 11 and the second contact portion 21 on the first plastic member 30 are at least partially overlapped. In this embodiment, the perpendicular projections of the first contact portion 11 and the second contact portion 21 on the first plastic part 30 may be completely overlapped, so that the combined body of the first contact portion 11, the second contact portion 21 and the first plastic part 30 may be subjected to the secondary injection molding.

In order to achieve at least partial overlapping of the vertical projections of the first contact portion 11 and the second contact portion 21 on the first plastic part 30, in the present embodiment, the lower terminal 10 further includes a first fixing portion 12 and a first relief portion 13 connected between the first fixing portion 12 and the first contact portion 11; the upper row terminal 20 further includes a second fixing portion 22 and a second displacement portion 23 connected between the second fixing portion 22 and the second contact portion 21, wherein when the second contact portion 21 is assembled to the first plastic member 30, the first fixing portion 12 and the second fixing portion 22 are displaced from each other, and the first displacement portion 13 and the second displacement portion 23 are displaced from each other.

Further, the first contact portion 11 and the second contact portion 21 each include a contact section exposed out of the second plastic member 40 for electrically connecting with the mating terminal. And the first contact portion 11 further includes an injection molding section integrally formed with the contact section, the first plastic part 30 is injection molded on the injection molding section of the first contact portion 11, and the contact section of the first contact portion 11 is sequentially exposed out of the first plastic part 30 and the second plastic part 40.

Referring to fig. 4, the optical module connector further includes a first pad 50 and a second pad 60 disposed corresponding to the first pad 50, the first fixing portion 12 of the lower row terminal 10 may be soldered on the first pad 50, and the second fixing portion 22 of the upper row terminal 20 may be soldered on the second pad 60.

During specific processing, the flexible board can be fixed on the jig, and the solder paste is uniformly coated on the first bonding pad 50 and the second bonding pad 60 by using a dispenser; then the upper row terminals 10 and the lower row terminals 20 of the terminal module are placed on the corresponding first pads 50 and second pads 60, respectively; and then, setting parameters such as certain time, pressure, temperature and the like for the resistance press welder, and respectively welding the upper and lower rows of terminals on the corresponding welding pads by using the set resistance press welder.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. An optical module connector is characterized by comprising a terminal module, wherein the terminal module comprises a lower row of terminals and an upper row of terminals, the lower row of terminals comprises a first contact part, and a first plastic piece is injected on the first contact part; the upper row of terminals comprises a second contact part, the first plastic part comprises a positioning structure for positioning the second contact part, and the second contact part is assembled on the first plastic part through the positioning structure; and the first contact part and the second contact part respectively comprise a contact section exposed out of the second plastic part.

2. The optical module connector of claim 1, wherein the positioning structure includes a retaining groove that mates with the second contact, the second contact being retained in the retaining groove when the second contact is assembled to the first plastic part.

3. The optical module connector of claim 2, wherein the positioning structure further comprises a stop protrusion, the stop protrusion is disposed at an end of the limiting groove, and the end of the second contact portion abuts against the stop protrusion when the second contact portion is limited in the limiting groove.

4. The optical module connector of claim 3, wherein the height of the stop protrusion is greater than or equal to the depth of the retaining groove.

5. The optical module connector of claim 1, wherein the positioning structure further comprises at least one pair of limiting protrusions symmetrically disposed on both sidewalls of the first plastic member, and the second contact portion is limited between the at least one pair of limiting protrusions when the second contact portion is assembled to the first plastic member.

6. The optical module connector of claim 5, wherein the spacing of the at least one pair of retention bumps is greater than the width of the second contact portion.

7. The optical module connector of claim 1, wherein the first contact portion and the second contact portion are disposed opposite to each other on two opposite sides of the first plastic member, and vertical projections of the first contact portion and the second contact portion on the first plastic member at least partially overlap.

8. The optical module connector of claim 7, wherein the lower row of terminals further comprises a first fixing portion and a first relief portion connected between the first fixing portion and the first contact portion, the upper row of terminals further comprises a second fixing portion and a second relief portion connected between the second fixing portion and the second contact portion, the first fixing portion and the second fixing portion are offset from each other and the first relief portion and the second relief portion are offset from each other when the second contact portion is assembled to the first plastic member.

9. The optical module connector of claim 8, further comprising a first pad and a second pad disposed corresponding to the first pad, the first fixing portion of the lower row of terminals being fixed to the first pad, and the second fixing portion of the upper row of terminals being fixed to the second pad.

10. The optical module connector of claim 1, wherein the first contact portion further comprises an injection molded section integrally formed with the contact section, the first plastic being injection molded on the injection molded section, the contact section being exposed from the first plastic.